SIG SauerRed Dot Sight
SIG Sauer ROMEO8H Red Dot Sight Ballistic Circle Dot
- Reticle
- Ballistic Circle Dot, 4 selectable modes, red
- Dot / Circle
- 2 MOA dot inside a 65 MOA circle
- Turrets
- 0.5 MOA per click; ±70 MOA adjustment range
- Electronics
- CR123A cell, over 100,000 hours, MOTAC motion activation
In stock — 7–10 business day delivery
Tracked delivery, estimated 7–10 working days
Want to know when it's back? Email us and we'll let you know
Multi-buy savings
Mix any optics and lights — applied automatically
- 5%2 items
- 10%3 items
- 15%4 or more
Applied automatically at checkout — no code needed. Accessories such as tailcaps, switches and mounts aren't included.
Complete your setup
- Shipped from the UK with tracked delivery
- 30-day returns on unused items
- Warranty support — contact us first
Delivery
Every order is shipped from the UK with tracked delivery. Estimated delivery time is 7–10 working days, and you will receive tracking details by email as soon as your order is on its way.
Returns
Unused items in their original packaging can be returned within 30 days. Email info@opticstrader.co.uk first and we will confirm the return details.
Warranty
Every product is new and boxed. If anything goes wrong, contact us first and we'll help with a manufacturer warranty claim where one applies.
The SIG Sauer ROMEO8H Red Dot Sight is a 1x (non-magnified) enclosed red dot sight with a 38 mm aperture and a selectable Ballistic Circle Dot reticle offering four modes — a 2 MOA dot inside a 65 MOA circle — running from a CR123A cell with over 100,000 hours of life.
The large 38 mm window is the reason to choose a ROMEO8-series sight over a compact micro dot: it gives a wide, uncluttered view that is easy to find under speed, and the enclosed housing keeps rain and debris off the emitter. MOTAC wakes the reticle on movement and shuts it down when the rifle is still.
How it compares
Want a titanium shroud and night-vision settings? The ROMEO8T adds both. Want a solar-assisted version? The ROMEO4T runs solar plus CR2032. Prefer a lighter sight? The ROMEO4T-PRO weighs 7.4 oz. Browse the SIG ROMEO range, all enclosed red dot sights and optics for straight-pull rifles, or read enclosed vs open red dot sights.
Ideal for
- Civilian Service Rifle and practical rifle shooting
- Straight-pull AR-15 and lever-release rifles
- Practical shotgun and 3-Gun stages
- Wet British conditions where an enclosed emitter helps
Key features
- Reticle: Ballistic Circle Dot, 4 selectable modes, red
- Dot / Circle: 2 MOA dot inside a 65 MOA circle
- Turrets: 0.5 MOA per click; ±70 MOA adjustment range
- Electronics: CR123A cell, over 100,000 hours, MOTAC motion activation
- Housing: 6061-T6 aluminium, IPX8 waterproof
- Weight: 10.3 oz (292 g)
| Magnification | 1x (non-magnified) |
| Aperture | 38 mm |
| Reticle | Ballistic Circle Dot, 4 modes (red) |
| Dot / Circle | 2 MOA dot / 65 MOA circle |
| Click Value | 0.5 MOA per click |
| Adjustment Range | ±70 MOA |
| Battery | CR123A (over 100,000 hours), MOTAC |
| Housing | 6061-T6 aluminium, IPX8 |
| Weight | 10.3 oz (292 g) |
| SKU / MPN / UPC | SOR81001 / SOR81001 / 798681590636 |
What reticle does the SIG Sauer ROMEO8H use?
The SIG Sauer ROMEO8H uses a Ballistic Circle Dot reticle in red with four selectable modes, built around a 2 MOA dot inside a 65 MOA circle.
What battery does the SIG Sauer ROMEO8H use?
The SIG Sauer ROMEO8H runs on a CR123A cell, rated at over 100,000 hours with MOTAC motion activation.
What is MOTAC on the SIG Sauer ROMEO8H?
MOTAC is SIG's motion-activated illumination: the SIG Sauer ROMEO8H switches the reticle on when it senses movement and powers down when the rifle is left still.
How big is the window on the SIG Sauer ROMEO8H?
The SIG Sauer ROMEO8H has a 38 mm aperture, which is considerably larger than a typical micro red dot.
How is the SIG Sauer ROMEO8H adjusted for zero?
The SIG Sauer ROMEO8H adjusts in 0.5 MOA per click, with a total range of ±70 MOA.
How much does the SIG Sauer ROMEO8H weigh?
The SIG Sauer ROMEO8H weighs 10.3 oz (292 g).
Every order is shipped from the UK with tracked delivery, with an estimated delivery time of 7–10 working days. Unused items in their original packaging can be returned within 30 days for a full refund.


